Unfair treatment cause of pregnancy

I started my internship on 6 August 2024 of which I signed a contract under sedibeng TVET college,sponsored by Cathsseta...however they college didn't give us a copy of our contracts.On the day of the induction they mentioned that we shouldn't get PREGNANT while on the program,but I found out on the 2nd of September 2024 that I'm preg and I wasn't even aware,so I continue working I think after 2 weeks of finding out I was pregnant I contacted the program coordinator from the college to tell her about my situation,she just asked about where I am doing my practicals and my name...till this day she didn't tell me what to do. On the 11th of November 2024 I was going for my regular check ups at Bara hospital and unfortunately I got admitted for a cervical cerclage since I have complications and got discharged on the 19th of November 2024 after they kept me for a week at the hospital. On the 9th of December the college called me and told me that they won't be able to pay me for the doctor's appointments,in fact they don't pay for pregnancy since they told us not to get pregnant,so on the day I left the place where I do my practicals(host employer_ocean basket)spoke to the manager and explained the situation to her and i told her that I'm not sure if ever I'm coming back or not since the college wants me to work without getting paid.Yesterday I texted the owner of the restaurant where I'm doing my practicals,explained the situation to him also so he won't be surprised y I don't come anymore. So what I wanna know Is,is this even fair for me to work while pregnant while not getting paid,and be asked to resign cause of that or what cause even when we signed our contracts it said the stipend is R4100 the next thing we getting R3500,the college says R600 is admin fee but I don't know what for...I don't know the right person to contact about this situation but then this is the situation I'm currently faced with.